200-901 Understanding and Using APIs Practice Question
When using RESTCONF to configure a network device, what Content-Type header should be set in the HTTP request to indicate YANG data in JSON format?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
application/yang-data+json
RESTCONF uses application/yang-data+json for JSON encoding of YANG data.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
application/yang
Why it's wrong here
Not a registered media type.
- ✓
application/yang-data+json
Why this is correct
Correct media type for RESTCONF with JSON.
- ✗
application/xml
Why it's wrong here
XML is not JSON.
- ✗
application/json
Why it's wrong here
Generic JSON; RESTCONF requires specific media type.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-901 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 200-901 exam.